US 11,953,649 B2
Fluid simulator property representation
Simon Harris, Abingdon (GB); Sheleem Kashem, Kennington (GB); Thomas Viard, Montpellier (FR); and Fabrice Levassor, Houston, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 15/733,597
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Apr. 1, 2019, PCT No. PCT/US2019/025093
§ 371(c)(1), (2) Date Sep. 10, 2020,
PCT Pub. No. WO2019/191746, PCT Pub. Date Oct. 3, 2019.
Claims priority of provisional application 62/651,151, filed on Mar. 31, 2018.
Prior Publication US 2021/0011191 A1, Jan. 14, 2021
Int. Cl. G01V 99/00 (2009.01); G01V 1/00 (2006.01); G01V 1/28 (2006.01); G06F 30/20 (2020.01); E21B 49/00 (2006.01); G06F 17/00 (2019.01)
CPC G01V 99/005 (2013.01) [G01V 1/003 (2013.01); G01V 1/282 (2013.01); G06F 30/20 (2020.01); E21B 49/00 (2013.01); G01V 2210/642 (2013.01); G01V 2210/643 (2013.01); G01V 2210/66 (2013.01); G01V 2210/661 (2013.01); G06F 17/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
accessing a depogrid generated via gridding of a structural model in a depositional space and transforming the gridded structural model to a geological space via an inverse mapping wherein the structural model represents structural features in a subterranean environment based at least in part on data acquired via at least one sensor;
determining local u, v and w axes for a plurality of cells in the depogrid via volumetric centroids and vertices of each of the plurality of cells as represented by coordinates in a depositional space coordinate system (u, v, w) and by coordinates in a physical coordinate system (x, y, z);
orthonormalizing the local u, v and w axes for the plurality of cells to generate orthonormalized local u, v and w axes for the plurality of cells, wherein an increased local amount of orthonormalization indicates a decreased local quality due to locally inconsistent interpretation of one or more of the structural features represented in the structural model;
defining directional geological grid properties based at least in part on the orthonormalized local u, v and w axes, wherein the directional geological grid properties comprise a tensor permeability property; and
simulating fluid dynamics of the subterranean environment to generate simulation results via a simulator based at least in part on at least a portion of the directional geological grid properties as assigned to the depogrid.